This page provides links to information sources worldwide on single (circle) hook research, studies, and jurisdictions where fishing regulations require their use. Help us develop this as an authoritative information source for recreational anglers and commercial sea fisheries alike.
Recreational angling - single hooks
Peer-reviewed studies - barbless single hooks for wild salmonid conservation
Single (circle) hook regulations
Recreational angling catch and release guidance
Commercial sea fishery circle hook by-catch initiatives